1. 2011-12-12 [Bug 154574] Improvements to the graph and worksheet kde-bugs- jos poortvliet 2. 2008-12-08 [Bug 154574] Improvements to the graph and worksheet kde-bugs- John Tapsell 3. 2008-07-31 [Bug 154574] Improvements to the graph and worksheet kde-bugs- John Tapsell 4. 2008-04-03 [Bug 154574] Improvements to the graph and worksheet kde-bugs- John Tapsell